Dennis Nilsen is a necrophiliac serial killer who killed at least 15 men between 1978-1983 in London. His nickname is the Muswell Hill Murderer and the Kindly Killer. Nilsen has been described as the British Jeffrey Dahmer: After he gave his victims in his apartment food and alcohol, he strangled them and kept the bodies usually for days in his apartment for further sexual desires. He dismembered the bodies and kept parts as trophies, buried them in a garden or flushed them down the toilet.

A tube blockage tracked the police to serial killer Dennis Nilsen

As Nilsen moved from a big house with garden into a smaller apartment, he had no chance anymore to bury the victims body parts. So he started to flush them down the toilet. After a blockage of the drainage system, an employee of Dyno-Rod plumbing company noticed bone parts in the water pipe. The supervisor of the employee immediately called the police. Dennis Nilsen was arrested in February 1983. The Kindly Killer confessed to 15 murders. He usually washed the victims bodies, gave them clothing to wear and talking to them. He was also sleeping with them in one bed for at least four weeks. On 4th of November 1983, the court sentenced him to life imprisonment.